/*
 * Copyright 2000-2012 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.intellij.refactoring.safeDelete;

import com.intellij.openapi.extensions.ExtensionPointName;
import com.intellij.psi.PsiElement;
import org.jetbrains.annotations.Contract;
import org.jetbrains.annotations.Nullable;

/**
 * @author Max Medvedev
 */
public abstract class ImportSearcher {
  private static final ExtensionPointName<ImportSearcher> EP_NAME = ExtensionPointName.create("com.intellij.safeDelete.importSearcher");

  /**
   * @return found import or null
   */
  @Nullable
  @Contract(pure = true)
  public abstract PsiElement findImport(PsiElement element, boolean onlyNonStatic);

  @Nullable
  public static PsiElement getImport(PsiElement element, boolean onlyNonStatic) {
    for (ImportSearcher searcher : EP_NAME.getExtensions()) {
      PsiElement anImport = searcher.findImport(element, onlyNonStatic);
      if (anImport != null) return anImport;
    }

    return null;
  }
}
